NPPES file of Aug 9, 2026

Behavior Analyst in California

20,348 NPPES records list behavior analyst with a practice address in California, 52 per 100,000 residents, the 5th highest rate of 51. Costa Mesa and San Diego have the most; each record links to the provider's NPI and the California license search. Page 274 of 407.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103K00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Costa Mesa has the most, 1,239

  1. Costa Mesa1,239
  2. San Diego1,157
  3. Sacramento597
  4. Los Angeles534
  5. Woodland Hills509

Behavior Analyst records in California

  1. Lucero OsorioSan Bernardino, CA 924081467150128
  2. Rabita Osorio, BCBASan Francisco, CA 941031639730005
  3. Jackelyn Osorio CervantesCosta Mesa, CA 926261013749829
  4. Guillermo Osorio Huerta, BCBAFairfield, CA 945331780222182
  5. Ronissa OsseSan Jose, CA 951361477028348
  6. Nicole OstendorfCosta Mesa, CA 926261811473762
  7. Alexandra OstryGranite Bay, CA 957461164943965
  8. Andrea OsunaPoway, CA 920641154924215
  9. Damian OsunaCosta Mesa, CA 926261316764541
  10. Yajaira OsunaCosta Mesa, CA 926261043187800
  11. Taibat OsuroEncino, CA 914361669310389
  12. Alexander OtakporCorona, CA 928791851889307
  13. Amy OteroMarina Del Rey, CA 902921669838082
  14. Darrian OteroCosta Mesa, CA 926261780419655
  15. Sara Otto, BCBA 01-20-42117Concord, CA 945201396219705
  16. Faith OtutahaSacramento, CA 958261730785056
  17. Ellen Ouchi, M.A., BCBACulver City, CA 902301700244233
  18. Ladonna OuedraogoNorthridge, CA 913241114770500
  19. Danielle Ouidiani, BCBASan Diego, CA 921261922751320
  20. Kimberly OukRichmond, CA 948041083189963
  21. Christy OussetSan Jose, CA 951261215422209
  22. Ayesha OutlandLong Beach, CA 908051922691666
  23. Erica OvertonNorth Hollywood, CA 916011578333001
  24. Cheri OvreboGrover Beach, CA 934331386112316
  25. Jordan OwenVictorville, CA 923921710388921
  26. Devan OwensNewport Beach, CA 926601457910804
  27. Iris Owens, BCBATorrance, CA 905041740705821
  28. Kailyn OwensLos Angeles, CA 900451356199301
  29. Melinda Owens, BCBASacramento, CA 958251134620727
  30. Mellissa Owens, BCBASacramento, CA 958151598502908
  31. Roberta OwensCorona, CA 928791942019765
  32. Sara OwensFresno, CA 937111467236323
  33. Stephanie OwensAlameda, CA 945011285103838
  34. Tamarah OwensSan Diego, CA 921281538661418
  35. Tatiania OwensRancho Cordova, CA 956701083386551
  36. Margaret OwusuWoodland Hills, CA 913671417510355
  37. Ruth OwusuAntioch, CA 945091710334172
  38. Akwasi Owusu-DonkorPalo Alto, CA 943061396426318
  39. Olayinka OyatayoSherman Oaks, CA 914231013703099
  40. Burkai OzSacramento, CA 958161093554941
  41. Larry OzaetaCosta Mesa, CA 926261194452185
  42. Kelsey OzawaSan Jose, CA 951101487231700
  43. Mark OzurovichGarden Grove, CA 928401952940348
  44. Josephine E P Henri-Le PierrotSacramento, CA 958261326510017
  45. Jessica PaaschMarysville, CA 959011417751041
  46. Robert Pabico, BCBAIrvine, CA 926141710247606
  47. Justin Aliyah Pabiona, NONEBakersfield, CA 933121811579634
  48. Alexandrea PabloOrange, CA 928681538631627
  49. Pauline Pablo, BCBASanta Clarita, CA 913551841620200
  50. Sean PabloIrvine, CA 926061831606490

Source: CMS NPPES, primary taxonomy 103K00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 5 of 51 per resident

  1. Massachusetts67
  2. Hawaii63
  3. Florida60
  4. California52
  5. New Mexico47
  6. Oklahoma44
  7. 50 states and D.C.32

Source: CMS NPPES, primary taxonomy 103K00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

under 0.1% of these records appear in a Medicare file, against 0.1% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California0.0%
  2. United States0.1%

Behavior Analyst records in California, measured

  • In a Medicare file5 of 20,348 · under 0.1% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file14 · 0.1% here, 0.1% nationally
  • Not updated in five years or more10,235 · 50.3% here, 47.0% nationally
  • Median graduation year2017 · the 14 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103K00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

20,348 NPPES records list behavior analyst (103K00000X) as their primary taxonomy with a practice address in California: 52 per 100,000 residents against 32 nationally (50 states and D.C.). Costa Mesa has 1,239 of them (6%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Florida13,565
  2. Texas5,837
  3. New York5,183
  4. Massachusetts4,718

States with a similar rate per 100,000

  1. New Mexico47.5
  2. Oklahoma44.0
  3. New Hampshire41.8
  4. Hawaii63.5

The largest states

  1. Florida13,565
  2. Texas5,837
  3. New York5,183
  4. Massachusetts4,718
  5. Nevada4,540

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.